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United States Patent | 5,514,934 |
Matsumoto ,   et al. | May 7, 1996 |
A discharge lamp having a large light output and a stable discharge. On an external surface of a cylindrical glass bulb enclosing a rare gas such as xenon, a pair of beltlike electrodes are mounted so as to face each other. A light output part is provided between the electrodes, and the electrodes are situated close to each other on the opposite side to the light output part. An image display device is constituted by arranging a plurality of the discharge lamps.
Inventors: | Matsumoto; Sadayuki (Kamakura, JP); Saikatsu; Takeo (Kamakura, JP); Myodo; Osamu (Kamakura, JP); Sakurai; Takehiko (Kamakura, JP); Sawada; Hrumi (Kamakura, JP); Hoshizaki; Junichiro (Kamakura, JP); Yoshika; Kazuo (Nagasaki, JP); Yamada; Toshio (Tokyo, JP); Nishimatsu; Hisae (Tokyo, JP) |
Assignee: | Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Appl. No.: | 339505 |
Filed: | November 14, 1994 |
May 31, 1991[JP] | 3-129307 | |
Feb 10, 1992[JP] | 4-023653 |
Current U.S. Class: | 313/607; 313/1; 313/234; 313/493; 313/634 |
Intern'l Class: | H01J 061/00 |
Field of Search: | 313/1,607,634,635,643,356,491,493,495,514,582,234 315/169.3 345/37,45,47,60,76 |
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